W. Edwards Deming once stated that the job of management is not supervision but leadership. He also concluded that capable leaders were those who understood and applied the system of profound knowledge.

Four-Cornered Leadership: A Framework for Making Decisions examines the system of profound knowledge and identifies the competencies that set the stage for its successful application. Illustrating the relationship between leaders and followers, it analyzes each of the four pillars that support Deming's system, in relation to prevailing management and...